Red flags abound without personal eyeball inspection and any indication of any history. Notice the seller tries to insinuate this is/maybe a genuine 1860 Army Colt but never says it. Absence of any bit of serial numbers and/or barrel Colt stampings red flag. Some of the scammers/turds are getting pretty good at making a firearm look old timey and/or stamping fake numbers/letters. I've been collecting/shooting German WW2 era K98k rifles and others for some years and it'll surprise alot of people of the sophistication of fakery that is going on. Why also is the seller starting at a .01 (penny) start on a gun that would be the value of an 1860 plus era made Colt. Naaa---I don't think this is the real deal unless proven otherwise. I checked the sellers sales grading, while not showing any D's or F's, that doesn't really mean alot, I've seen known turd sellers who clear their bad sales ID's and continue selling on GB. This seller may be legitimate as the day is long but is uneducated with Colt percussion revolver history/information also possibly bought it/took in on a trade and was misinformed/taken by another seller. Good previous posts ref this 1860.
Also FWIW, my understanding of all I've read on the 1860, the 1860 Civilian Model didn't have the recoil shield cut's for a stock nor came with any shoulder stock screws on the fame. Either the seller didn't know, doesn't know, and/or mistakenly didn't write his sales heading right.